A flexographic printing plate includes at least one halftone printing area with a plurality of halftone dots. A halftone dot of said plurality of halftone dots is shaped as a relief area. Said relief area includes a central portion and a surrounding portion. Said central portion has a central dot floor with a first pattern of a plurality of pins protruding upwardly from the central dot floor. Said surrounding portion protrudes upwardly from the central dot floor and has a top side including a second pattern of a plurality of recesses. The first pattern and second pattern are such that the surrounding portion can be distinguished from the central portion.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The method of claim 1, wherein the central portion and the surrounding portion are substantially circular.
3. The method of claim 2, wherein the plurality of pixels of the tile represents an area with a length and width dimension between 10 and 1000 micrometres.
4. The method of claim 2, wherein each recess of the plurality of recesses is represented by a group of adjacent pixels, the group of adjacent pixels having a step-shape.
5. The method of claim 2, wherein, a number of pixels representing the plurality of recesses is at least 1% of a total number of pixels representing the surrounding portion.
6. The method of claim 2, wherein pixels representing the plurality of recesses are distributed evenly across the surrounding portion.
7. The method of claim 2, wherein pixels representing the plurality of pins are distributed evenly across the central portion.
8. The method of claim 2, wherein a number of pixels representing of the plurality of pins is larger than 5% of a total number of pixels representing the central portion.
9. The method of claim 1, wherein the plurality of pixels of the tile represents an area with a length and width dimension between 10 and 1000 micrometres.
10. The method of claim 1, wherein each recess of the plurality of recesses is represented by a group of adjacent pixels, the group of adjacent pixels having a step-shape.
11. The method of claim 1, wherein, a number of pixels representing the plurality of recesses is at least 1% of a total number of pixels representing the surrounding portion.
12. The method of claim 1, wherein the plurality of pixels representing the plurality of recesses are distributed evenly across the surrounding portion.
13. The method of claim 1, wherein the plurality of pixels representing the plurality of pins are distributed evenly across the central portion.
14. The method of claim 1, wherein a number of pixels representing of the plurality of pins is larger than 5% of a total number of pixels representing the central portion.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
February 1, 2021
June 11, 2024
Browse 5M+ US patents with plain-English claim translations and AI-generated analysis.